RT Journal Article SR Electronic T1 Non-invasive evaluation of hepatic fibrosis using magnetic resonance and ultrasound techniques JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1670 OP 1670 VO 55 IS 11 A1 J F L Cobbold A1 M Wylezinska A1 C Cunningham A1 M E Crossey A1 H C Thomas A1 I J Cox A1 N Patel A1 S D Taylor-Robinson YR 2006 UL http://gut.bmj.com/content/55/11/1670.1.abstract AB